udp虽然可靠性不及，但传输效率较高。所以在网络上仍有很大的用途。这几日需要了解下udp通讯的过程，上网发现这方面的资料还挺少。于是仔细的翻找了下msdn,基本上搞清楚了udp通讯的过程。做了一个测试的例子。希望对大家有帮助。 -udp, although the reliability is less than, but the transmission efficiency is high. So there are still a lot of uses on the network. Udp communication process in the past few days need to understand the Internet to find information in this regard is quite small. So carefully rummaging under the msdn, basically figure out udp communication process. Do a test example. I hope everyone has to help.